Sighted object over Conyers GA that looked like large solid lit blimp hovering and then moving off

Driving along Salem Road from Interstate 20 towards Brown Bridge Road. The object caught my eye because it was too big to be a plane, the shape was different and the lighting was solid. The shape was blimp like, but the shape was almost like a domed serving platter. THe light was white like a star coloring, not overly bright though. The object first appeared to be hovering and then it was moving off towards the West (I think). I was trying to drive and keep the object in my view. I did stop and try to get a better look, but then the trees blocked my sight. It was also moving away from me and getting smaller.

As I lost site, I got back on Salem Road and turned onto Brown Bridge Road heading towards Mcdonough. I caught site of the object again but it was moving away and the trees were blocking my view. I tried to keep up with it and eventually lost it completely.

I remember feeling like I could not be the only one seeing this. I thought about it just being a blimp, but the time and the look did not make me believe it was anything short of abnormal. After arriving home, I searched the skies without any luck. I immediately searched the internet to see if anyone had reported seeing it. I know that I saw something other than an ordinary aircraft